What are the major poisnous gases, Chemistry

What are the major poisnous gases released during burning of the plastic substances?????

Ans) It is high time that we start taking concrete steps in order to prevent pollution or else it is a ... Non Bio-degradable:- Substances like iron,lead,aluminium,plastic etc. do not ... due to incomplete combustion of hydrocarbons is a very poisnous gas. ... The Greenhouse Effect The burning of coals and oils release carbon dioxide